Rewrite the given equation in its balanced form and find the n factor of sulphuric acid
 $ Pb{O_2} + Pb + {H_2}S{O_4} \to PbS{O_4} + {H_2}O $

Hint :The addition of stoichiometric coefficients to the reactants and products is needed to balance chemical equations. This is important since a chemical equation must follow the laws of conservation of mass and constant proportions, which means that the reactant and product sides of the equation must have the same number of atoms of each element.

Complete Step By Step Answer:
A chemical equation is a metaphor for a chemical reaction in which the reactants and products are represented by their chemical formulae.
The addition of stoichiometric coefficients to the reactants and products is needed to balance chemical equations. This is important since a chemical equation must follow the laws of conservation of mass and constant proportions, which means that the reactant and product sides of the equation must have the same number of atoms of each element.
The number of H⁺ ions substituted by 1 mole of acid is the ‘n' factor for an acid.
Example: n factor of HCl is 1.
It can also be characterised as the oxidation state shift per molecule.
The n factor for sulphuric acid in the following equation can be found by first balancing them.
 $ Pb{O_2} + Pb + 2{H_2}S{O_4} \to 2PbS{O_4} + 2{H_2}O $
For 1 sulphuric acid, the shift is +1, and the n Factor is 1.

Note :
The addition of stoichiometric coefficients to the reactants and products is needed to balance chemical equations. This is important since a chemical equation must follow the laws of conservation of mass and constant proportions, which means that the reactant and product sides of the equation must have the same number of atoms of each element.